Grandio Elite 8x16 Greenhouse Kit

128 sq ft of premium barn-style growing space under a full 8 ft roof. The Grandio Elite 8x16 pairs thick 10mm twin-wall polycarbonate (vs 6mm on the Ascent) with a heavy-duty powder-coated aluminum frame, 4 roof vents, and an included steel base kit for serious year-round production. Full 8 ft barn-style roof maximizes headroom, interior volume, and curb appeal 10mm twin-wall polycarbonate panels deliver the best insulation in the Grandio hobby lineup for cold-climate growing 1.2 mm heavy-duty aluminum frame is rust proof and withstands winds up to 76 mph when properly anchored Rated for a maximum snow load of 25 lbs per sq ft Steel base kit included for a rigid perimeter foundation on any surface 4 roof vents, built-in rain gutters, and a 3 ft 8 in x 6 ft 2 in double sliding door Best for: growers running three or more dedicated zones with large raised beds, across vegetables, herbs, flowers, and tropicals. It offers 33 percent more space than the Elite 8x12. An optional back door transformation kit creates a true walkthrough layout.What's included Powder-coated aluminum frame (green) 10mm twin-wall polycarbonate panels Bind-resistant double sliding doors with easy latch and double ball catch 4 roof vents, built-in rain gutters, and downspouts Heavy-duty steel base kit and side supports Stainless hardware, assembly tools, and anchoring components Note: the Elite snow load kit for this size is sold separately.Anchor optionsChoose Wood for decks and timber platforms, Concrete for slabs and hard surfaces, or Dirt for direct soil installation with earth anchors. The included steel base kit is used with all three.Premium upgradeThe optional premium upgrade adds 4 automatic roof vent openers, 20 plant hangers, a trellising kit, a drip irrigation kit, and Brillianize anti-static panel cleaner.Specifications Height 8 ft, barn-style roof Width 8 ft Length 16 ft Frame 1.2 mm heavy-duty aluminum, powder coated green Panels 10mm twin-wall polycarbonate Door Bind-resistant double sliding door, 3 ft 8 in x 6 ft 2 in Roof vents 4 Rain gutters Built-in Steel base kit Included Snow load kit Sold separately Back door kit Optional Snow rating 25 lbs/sq ft maximum snow load Wind rating Up to 76 mph when anchored properly Extendable Yes, with Elite extension kits WarrantyLifetime warranty on the aluminum frame and a 15-year limited warranty on the polycarbonate panels.Why buy from Renewable OutdoorsShippingFree ground shipping in the continental US. Orders typically ship in 1 to 2 business days.Warranty supportWe handle warranty claims with Grandio directly so you don't have to chase the manufacturer.Returns30-day returns on unopened items. See our return policy for details.Frequently asked questionsHow does the Elite differ from the Ascent?Two upgrades: 10mm twin-wall panels instead of 6mm for noticeably better heat retention, and the barn-style roof that adds interior volume and a more finished look. If insulation and aesthetics matter most, the Elite is the pick.How hard is assembly?Plan a weekend with a helper; larger Elite models can take 2 to 3 relaxed days. The kit includes labeled parts, stainless hardware, required tools, and step-by-step instructions.What foundation do I need?The included steel base kit creates a rigid perimeter frame that works on concrete, wood decks, or bare ground. Pick the matching anchor option so the hardware fits your surface.How does it handle wind and snow?The Elite is rated for 76 mph winds and 25 lbs per sq ft of snow when properly anchored. In heavy snow country, add the Elite snow load kit for extra security.